I don't know anything about the BT setup... as for the others... well...

Nothing I've had has lasted more than a year, but it seems it's only me.

A few weeks ago, I would have recommended Linksys, but mine is on the blink and have been on the phone to their support desk (in india) to try and get a replacement under warranty.

Because I don't have a receipt, my less than 2 year old router (it was only just released them) which is warrantied for three years can't be replaced. I can't prove I bought it, so I have no warranty. The chap on the phone had nothing other than "you must have a receipt" to say
He then tells me to write down a reference number, should I wish to call them back - I'll let you guess where I told him to shove it

Belkin, netgear, d-link, etc... are all good to be honest, much of a muchness.
SMC have a five year warranty though... guess where I am going next (and keeping my b***y receipt).

If I had the time, I'd do a quick google search for reviews and take it from there... sites for PC-Magazine, PC-Pro will probably have old-ish reviews online for you to look at.